Eyeglasses.



H. C. SMYTH.

EYEGLASSES.

APPLICATION FILED nov. 6. 1915.

1,186,698. Patented June13, 1916.

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HILL 0. SMY'IH, OF COUNCIL BLUFFS, IOWA.

EYEGLASSES.

Specification of Letters Patent.

Patented June 13, 1916.

Application filed November 6, 1815. Serial No. 60,164.

, ject to provide means for retaining the glasses in an operative position before the eyes of the wearer by means of suction so that spring-actuated nose-pads or thedike which depend upon retraction of springs, and which often cause irritation or abrasion of the skin, may be avoided.

Another object is to employ the bridge, which may be of ordinary appearance, as a tubular support for containing the means employed, to thereby dispense with the .use of nose-guards, and spring-pressed links or levers for actuating the same and wlnch add materially to the weight and the cost of construction.

With the foregoing objects in view, and

others to be mentioned, the invention prcsents a novel construction, combination and arran ement of arts, as described herein and c aimed, an as illustrated in the accompanying drawing, jvherein Figure 1 is a lan view showing a pair of lenses connected by a bridge, a part of the bridge being broken away and in section, to show interior construction thereof. Fig. 2 is a view on an enlarged scale illustrating the same parts employed in Fig. 1, the lenses being broken away. Fig. 3 is a transverse section between lines 8-3 and 3--3 of Fig. 2. Fig. 4 is a detail showing a part of the bridge in longitudinal section, and a slot formed therein, a terminal of a piston rod and lug also being shown. Fig. 5 is a bottom plan view of one of the ends of the bridge, to illustrate the preferred form thereof.

Referring now to the drawin for a more particular description, numera 1 indicates a tubular nose bridge of saddle shape, that part of its aperture opening upon each of its ends, indicated at a, bem formed circular in plan and outwardlyivergent, and that art of its aperture indicated at b, intermediate the outwardly-divergent parts a,

' preferably having a form elliptical in crosssection, and provided, to open on the upper side of the bridge, with a air of slots 2, the side walls of each slot being formed convergent toward one of its ends, the uses therefor being more particularly described hereinafter.

The outer surface of the bridge, at its ends, is preferably formed flaring or bell sha )ed, as plainly shown in the drawing.

umerals 3 indicate )lstons disposed in the flaring apertures a of the bridge, a flexible iston rod for each piston being indicated at 4, each being provided at its inner end with a finger-piece or lu 5 disposed in a slot 2 to project somewhat above the bridge.

As thus described, each )iston rod has a part disposed in an outwardly-divergent ap crture a, and both piston rods have a part disposed in the aperture 1). On account of the bell shaped ends of the bridge a suitable contact thereof may be made on the fleshy parts at the sides of the nose of the wearer, and in operation, after the bridge has been adf'usted to the nose, the pistons 3 are moved a imited distance inwardly of apertures a by manually moving the lugs 5 in directions opposed to each other, thereby forming a vacuum-chamber 6 in each open end of the bridge, the suction or tendency to form a vacuum causing the flesh to be drawn inwardly of said chambers, and, on account of suction, operating to retain the bridge upon the nose of the wearer, each )iston rod moving toward the opposite em of the bridge from the piston with which it is connected and toward the slot in which its lu is disosed; and since the walls of the glots are ormed convergent toward the res ectivc ends of the bridge adjacent to which they are disposed, the lugs will be compressed between the walls of the slots in a manner to prevent return movements of the pistons, until the lugs are thereafter manually released.

To release the bridge, the lugs may be manually moved toward each other to thereby move the pistons outwardly of chambers 6. While the piston rods are constructed of flexible material. they are sufficiently rigid to resist longitudinal stresses in a degree to perform this function. It may therefore be stated that the bridge, in part, supports the weight of the glasses, and also provides the pair of pump eylinders for the pistons.

In operation, the glasses may be very quickly applied or secured, all that is necessary being to simultaneously move the lugs in opposed directions while pressing the bell shaped terminals of the bridge upon the fleshy parts at the sides of the nose. 7

While I have described the construction in detail, it will be understood that minor details may be changed if desired and that no limitation shall be imposed relating to form, size, pro ortion or material to be employed since to scope of the invention is determined by the appe ded claims.

Each lens is indicate at 9, and numerals 8 indicate the s a ens moun in brackets for connecting the lenses to the brid e, the lenses and brackets being of any usua construction.

What I claim and desire to secure by Let.- ters at nt An improvement in eyeglasses, comprising in combination with a pair of lenses, a tubular npse bridge con cted with the Len esea p of movale pi tons i pos d in t e t bular ridge- 2. An improvement in eyeglasses, com, prising in combination with a air of lenses, a nose br d e connected w th tire is see and having end portions provide wit apertures openly thereon, a pa r of pistons disposed in sat apertures, and means Supported by t e i ge for moving the p tons- I. An improvement in eyeglasses, comprising a mb aatmn ith a r of lenses a nose br dge connected with re lenses an h ving term ls tor m king con a t i h Copies 0! this patent may be ohtotnul to:

skin surfaces of the wearer at opposed sides of the nose and provided with apertures opening upon said terminals, a pair of pistons disposed in the apertures of the bridge, and means for moving the pistons for causin" a compression of the terminals of the bridge against said surfaces.

4. An improvement in eyeglasses, comprising, in combination with a pair of lenses, a nose bridge connected with the lenses, said bridge being formed with an aperture opening upon its ends and with a pair of slots intermediate its ends, a pair of pistons disposed in the aperture of said bridge, a pair of piston rods disposed in said aperture, each bein connected with a piston and provided wit l a lug projecting outwardly of a slot, said lugs being movable in the slots for moving the pistons longitudinally of said aperture.

I). An improvement in eyeglasses, comprising in combination with a pair of lenses, a nose bridge connected with the lenses and rovided with outwardly flaring end porons, and a pair of air pumps arranged within and having cylinders opening upon the flaring end portions of said bridge.

In test mony whereof, I have affixed my signature in presence of two witnesses.

HILL 0. SMYTH.

Witnesses:

Hniau A. S'ruums, A. \V. Enxmo'ros.

a egg on, by droning the "Commissioner of Patents. 

